Floor mat



FIG. 1 illustrates a top elevation view of the claimed design for a floor mat;

FIG. 2 illustrates a bottom elevational view thereof;

FIG. 3 illustrates a perspective view of the top elevational view thereof;

FIG. 4 illustrates a rear view thereof;

FIG. 5 illustrates a front view thereof; and,

FIG. 6 illustrates a side view thereof. 

CLAIM The ornamental design for a floor mat, as shown and described. 